Systems and organs

Perhaps you wish to learn more about your eyes, kidneys, heart, or immune system. Maybe you have a question about your digestive system or genes. Browse by subject below to get useful information sourced from the Better Health Channel.

Remember, if you are concerned about any health issues, please contact your local doctor to discuss your concerns with them.

Blood, Blood Vessels and Heart

Blood carries oxygen and nutrients to the cells of our body and helps us fight infection. Veins, arteries and capillaries are blood vessels that combine with the heart to make up the circulatory system.

Bones, Muscles and Joints

Bones, muscles and joints hold our body together and support freedom of movement. They are part of the musculoskeletal system (also known as the locomotor system). Fractures, back pain and muscle strain are common conditions.

Brain and Nerves

The brain, nerves and spinal cord form part of the nervous system. Nerve cells and chemicals called neurotransmitters help different parts of the body communicate. Tumours, seizures, headaches and brain disorders can affect the brain.

Ear, Nose and Throat

The ear, nose and throat are part of the upper respiratory tract. They help us breathe, smell, hear, keep our balance, swallow and speak. Infections and conditions of the sinus, tonsils and adenoids affect these organs.

Female Reproductive System

The female reproductive system is involved in sexuality and fertility. It includes the vagina, womb (uterus), fallopian tubes and ovaries. Menstrual periods, ovulation, pregnancy, birth and menopause are part of the female reproductive cycle.

Genes and Genetics

Genes are inherited and contain information that our cells use to control growth, development and health. Genetic changes disrupt these messages and can cause health problems. These may be present at birth or may appear later in life.

Hormonal System (Endocrine)

Hormones are like chemical messages that control our body's growth, repair and reproduction. Organs of the hormonal or endocrine system include the pituitary, adrenal, thyroid and parathyroid glands and the ovaries, pancreas and testes.

Lungs

The lungs are part of our respiratory system. Along with the trachea, alveoli, bronchi and diaphragm, they help us breathe in oxygen and exhale carbon dioxide. Lungs can be affected by infection or allergy or may puncture or collapse.

Male Reproductive System

The male reproductive system is involved in sexuality and fertility. It includes the penis, testicles, epididymis, vas deferens and prostrate gland. These body parts have a role in semen production and ejaculation.

Mouth

Neuromuscular System

The neuromuscular system involves our nervous system and muscles working together to control, direct and allow movement of the body. Movement-related disorders include motor neuron disease, Parkinson's disease, multiple sclerosis, Huntington's disease, muscular dystrophy and polio.

Skin

The skin protects our body against injury and infection, regulates temperature and controls the loss of body fluids. Its two main layers are the dermis and epidermis. Skin can be affected by sun, ageing, injury and infection.